Low-noise Nd:LaMgAl sub 11 O sub 19 laser for use in magnetometry

Journal Article · Wed Nov 15 04:00:00 EST 1989 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.343816· OSTI ID:5364027

Bohler, C L ^[1]

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1. Texas Instruments, Incorporated, P.O. Box 660246, Dallas, Texas 75266 (US)

A stable, low-noise, tunable, solid-state laser has been constructed for use in magnetometry. The system is designed specifically for applications in which a rugged, magnetically clean source is required. A La{sub 1{minus}{ital x}}Nd{sub {ital x}}MgAl{sub 11}O{sub 19} (LNA or LMA) laser crystal provides the 1083-nm radiation necessary for optical pumping of gaseous helium, the process on which our magnetometer design is based. Laser characteristics of the 0.5-W SDL 2432 laser-diode-pumped device consist of 112-mW free-running laser output near 1082 nm, a threshold of 35 mW, and an output power of up to 26 mW within a single longitudinal mode at the helium metastable resonance wavelengths, obtained by insertion of an intracavity solid etalon. The structure of the hand-held'' laser unit is presented with particular emphasis on the laser parameters required for low-noise operation of this source at the wavelengths of interest.

• OSTI ID: 5364027
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 66:10; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
DESIGN
ELEMENTS
FLUIDS
GASES
HELIUM
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LASER CAVITIES
LASERS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAGNETOMETERS
MEASURING INSTRUMENTS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
NOISE
NONMETALS
OPTICAL PUMPING
OXIDES
OXYGEN COMPOUNDS
PUMPING
RARE EARTH COMPOUNDS
RARE GASES
SOLID STATE LASERS
USES